21948656

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{139}}^2$

素因数の和:357

約数の個数: 30

約数和(自身を含む): 43436952

約数和(自身を除く): 21488296

約数列:

[1, 2, 4, 8, 16, 71, 139, 142, 278, 284, 556, 568, 1112, 1136, 2224, 9869, 19321, 19738, 38642, 39476, 77284, 78952, 154568, 157904, 309136, 1371791, 2743582, 5487164, 10974328, 21948656]

約数ペア:

[(1, 21948656), (2, 10974328), (4, 5487164), (8, 2743582), (16, 1371791), (71, 309136), (139, 157904), (142, 154568), (278, 78952), (284, 77284), (556, 39476), (568, 38642), (1112, 19738), (1136, 19321), (2224, 9869)]